Thinkabara

🧮 4th Grade · Math4.MD.C.7Unit 11: Angles, lines & shapes

Adding angles

Google Classroom

🎯 Objective: Students find unknown angles by adding and subtracting.

Lesson outline

  1. Split a right angle into 30° and 60°.
  2. Solve for unknown angles with equations.
  3. Practice.
  4. Exit: one unknown angle.

Lesson 4 of 6 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

4.MD.C.7

Common Core State Standards for Mathematics, Grade 4 — typical US scope & sequence

🏁 Unit goals

  • Measure and draw angles with a protractor
  • Classify shapes by lines and angles
  • Identify lines of symmetry

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

📚 All 4th Grade skills🎮 Learning games⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add 4th Grade Math to your free Lesson Planner: enter your timetable once and every period shows the next lesson, skipping weekends and school breaks.

Add to my planner See the year’s sequence

More lessons in “Angles, lines & shapes”

  1. Points, lines, rays and angles
  2. Angles as turns
  3. Measure and draw angles
  4. Adding angles
  5. Parallel and perpendicular lines
  6. Lines of symmetry

Something to improve in this lesson? Tell us.